Three Phase Solar Inverter HES 6-12kW

Name: Three Phase Solar Inverter 6-12kW - ETEK Electri
SKU: HES 6-12kW LT

The ETEK HES 6-12kW LT is a three phase solar inverter that combines PV, battery, grid and generator inputs in one ultra-thin IP65 unit. With SiC technology, 98.2% maximum efficiency and under 10 ms backup switchover, it delivers dependable hybrid power.

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ModelHES 6-12kW LT

CategoryHybrid Solar Inverters, Solar Inverters

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of Three Phase Solar Inverter

Every feature of this three phase solar inverter is built for flexible hybrid systems, and the 3 phase solar hybrid inverter design lets PV, battery, grid and generator work together in parallel.

SiC technology: maximum efficiency of 98.2% (European efficiency 97.7%).
2 independent battery ports: mix old and new batteries on the same inverter.
150%-200% PV input power: 3 MPPTs with 20 A PV input current for higher compatibility with PV panels.
200-480% grid input power: up to 24 kW, supplying loads and charging the battery in parallel.
166-400% overload: 20 kVA peak power for 10 seconds.
Ultra-thin, IP65: only 165 mm deep, suitable for indoor and outdoor installation.
Generator port: smart monitoring of generator input, max. 36.4 A.
High-current battery support: 250 A battery current and 30-60 V battery voltage, compatible with sodium-ion batteries.
Parallel operation: up to 6 units in parallel (off-grid mode).
Protection options: AFCI and PID functions available as options.
Fast switchover: on/off-grid switching time below 10 ms.

Commercial Applications of Three Phase Solar Inverter

In a hybrid system, solar power supplies the load first and any excess energy charges the battery. Further surplus is fed back to the grid, and when solar generation is insufficient, the battery and grid supplement the supply. This 12kw 3 phase inverter therefore supports peak shaving and demand management, eases grid congestion in areas with high solar penetration, and enables participation in electricity market services such as virtual power plants (VPPs).

Applications & Use Cases

Small commercial and light industrial buildings with a three phase supply that want to raise solar self-consumption.
Peak shaving and demand management to reduce load on the grid during peak periods.
Seamless backup power for sites that need high supply continuity, with on/off-grid switching below 10 ms.
Generator-backed sites where the three phase solar inverter manages generator input up to 36.4 A.
Grid-congested areas with high solar penetration and VPP or electricity market service participation.
Retrofit and expansion projects using 2 independent battery ports to combine old and new batteries.

Technical Specifications of Three Phase Solar Inverter

The table below lists the full electrical data for each model in the range. The 6kw 3 phase solar inverter (HES-6K-LT) and its 8 kW, 10 kW and 12 kW siblings share the same PV, battery and general data.

Model	HES-6K-LT	HES-8K-LT	HES-10K-LT	HES-12K-LT
Off-grid (Back-up) Output
Rated output power	6 kW	8 kW	10 kW	12 kW
Max. output power	6.6 kVA	8.8 kVA	11 kVA	13.2 kVA
Peak power & duration	20 kVA (10 s)
Max. output current	10 A	40 A	50 A	60 A
Switching time	< 10 ms
Generator max. current	36.4 A
Generator voltage range	185-276 V (P2N)
Grid Side
Rated voltage	3/N/PE, 220/380 VAC, 230/400 VAC
Grid voltage range	185-276 V (P2N)
Grid frequency	50/60 ± 5 Hz
Max. input power	24 kVA
PV Input
Max. input power	18 kW
Max. input voltage	800 V
MPPT voltage range	130-800 V
Starting voltage	140 V
Number of MPPT	3
Max. input strings per MPPT	1 / 1 / 1
Max. input current	20 A / 20 A / 20 A
Short-circuit current	24 A / 24 A / 24 A
Battery
Battery type	Lithium-ion / Lead-acid / Sodium-ion
Number of battery inputs	2
Battery voltage range	30-60 V
Charging / discharging current	125 A × 2
Efficiency
Max. efficiency	98.2%
European efficiency	97.7%
Max. battery charging/discharging efficiency	95%
General Data
Size (W × H × D)	465 mm × 665 mm × 165 mm
Weight	36 kg
Noise	< 45 dB(A)
Operating temperature	-25°C to +60°C (> 45°C derating)
Operating altitude	4000 m (> 3000 m derating)
Cooling method	Intelligent air cooling
Ingress protection	IP65
Topology	Isolation
Monitoring / communication	LED / WiFi / 4G / Bluetooth / RS485
Protection & Certification
Protection	DC switch; reverse polarity protection; AC over-voltage / over-current / short-circuit protection; anti-islanding; residual current monitoring; insulation resistance detection; surge protection DC type II / AC type III; AFCI (optional); PID (optional)
CE-LVD	IEC 62109-1 & 2, IEC 62477-1
CE-EMC	EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4, EN 61000-4-16, EN 61000-4-18, EN 61000-4-29
Grid codes	VDE-AR-N4105; VDE 0126-1-1; EN 50549-1; G98, G100; CEI 0-21; AS/NZS 4777.2; NRS 097-2-1

Dimensions and Wiring of Three Phase Solar Inverter

This three phase solar inverter measures 465 mm × 665 mm × 165 mm and weighs 36 kg, and the 12kw 3 phase hybrid inverter version uses the same compact enclosure as the 6 kW model.

Item	HES 6-12kW LT
Size (W × H × D)	465 mm × 665 mm × 165 mm
Weight	36 kg
Ingress protection	IP65
Cooling	Intelligent air cooling, noise < 45 dB(A)
Operating temperature	-25°C to +60°C (> 45°C derating)
Operating altitude	4000 m (> 3000 m derating)

The wiring diagram shows how the inverter connects to the grid and generator through an ATS, to PV and battery over DC cable, and to normal and backup loads over AC cable.

System wiring diagram (blue: AC cable, green: DC cable)

Connection	Rating
Grid / back-up AC	3/N/PE, 220/380 VAC or 230/400 VAC, 50/60 Hz
Generator port	185-276 V (P2N), max. 36.4 A
PV inputs	3 MPPTs, 1 string each, 20 A per MPPT, 130-800 V
Battery ports	2 independent ports, 30-60 V, 125 A each
Communication	LED, WiFi, 4G, Bluetooth, RS485